| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure sensitive resistance sensor 1 which allows less variation in contact resistance change between both electrodes. SOLUTION: A lower-side electrode layer formed at a lower-side film comprises a plurality of electrode parts 7, in comb-like, each of which is straight. An upper-side electrode layer formed at an upper-side film comprises three straight electrode parts 10 which are orthogonal to the lower-side electrode parts 7. When a pressure is applied from above on the upper-side film, the central part of the upper-side film deforms so that the upper-side electrode part 10 contacts the lower-side electrode part 7. Here, the contact part between the lower-side electrode part 7 and the upper-side electrode part 10 is limited to a plurality of intersection parts 11 where both electrode parts 7 and 10 cross each other. Thus, the variation in contact resistance change between both electrodes 7 and 10 is reduced, resulting in stable detection of a pressure.
|
